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TSU6111ARSVR датащи(PDF) 10 Page - Texas Instruments

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номер детали TSU6111ARSVR
подробное описание детали  USB Port SP2T Switch Supports USB & UART
PDF  32 Pages
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производитель  TI1 [Texas Instruments]
домашняя страница  http://www.ti.com
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TSU6111ARSVR датащи(HTML) 10 Page - Texas Instruments

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TSU6111A
SCDS331
– FEBRUARY 2012
www.ti.com
ACCESSORY ID DETECTION
If VBUS_IN is high and the attachment is not a charger, then determine the impedance on the ID pin. If VBUS_IN is
low and an accessory is attached, then use an ADC for impedance sensing on the ID pin to identify which
accessory is attached.
IMPEDANCE BUCKETS FOR EACH ACCESSORY
In order to implement ID detection, each accessory should contain a ID impedance resistor value (refer
toTable 2) which has a 5% tolerance accuracy.
Table 2. Accessory ID and Switch States
SWITCH STATE
FACTORY CABLE
DETECTED
RESISTOR
ADC
ACCCESSORY
IMPEDANCE
TOLERANCE
DP/DM
VALUE
JIG
BOOT
ON ID
(%)
USB
UART
OTG
0
—
0
ON
OFF
OFF
OFF
MHL
1K
5%
0
OFF
OFF
OFF
OFF
Audio Device Type 3
28.7K
5%
1110
OFF
OFF
OFF
OFF
Reserved Accessory #1
34K
5%
1111
OFF
OFF
OFF
OFF
Reserved Accessory #2
40.2K
5%
10000
OFF
OFF
OFF
OFF
Reserved Accessory #3
49.9K
5%
10001
OFF
OFF
OFF
OFF
Reserved Accessory #4
64.9K
5%
10010
OFF
OFF
OFF
OFF
Audio Device Type 2
80.27K
5%
10011
OFF
OFF
OFF
OFF
Phone Powered Device
102K
5%
10100
OFF
ON
OFF
OFF
TTY Converter
121K
5%
10101
OFF
OFF
OFF
OFF
UART Cable
150K
5%
10110
OFF
ON
OFF
OFF
Type 1 Charger
200K
5%
10111
OFF
OFF
OFF
OFF
Factory Mode Cable - Boot Off USB
255K
5%
11000
ON
OFF
ON
OFF
Factory Mode Cable - Boot On USB
301K
5%
11001
ON
OFF
ON
ON
Audio/Video Cable
365K
5%
11010
OFF
OFF
OFF
OFF
Type 2 Charger
442K
5%
11011
OFF
OFF
OFF
OFF
Factory Mode Cable - Boot Off UART
523K
5%
11100
OFF
ON
ON
OFF
Factory Mode Cable - Boot On UART
619K
5%
11101
OFF
ON
ON
ON
Stereo Headset with Remote (Audio Device Type 1)
1000.07K
10%
11110
OFF
OFF
OFF
OFF
Mono/Stereo Headset (Audio Device Type 1)
1002K
10%
11110
OFF
OFF
OFF
OFF
No ID
—
—
11111
OFF
OFF
OFF
OFF
USB Standard Downstream Port
—
—
11111
ON
OFF
OFF
OFF
USB Charging Downstream Port
—
—
11111
ON
OFF
OFF
OFF
Dedicated Charging Port
—
—
11111
OFF
OFF
OFF
OFF
10
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Copyright
© 2012, Texas Instruments Incorporated
Product Folder Link(s): TSU6111A



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